#mian{
    width: 100%;
    position: fixed;
    top: 0px;
    z-index: 999;
    background-color: white;
}
#head-menu{
    height: 90px;
    border-bottom: 1px solid grey;
    /* border: 1px solid grey; */
}

.head-menu{
    height: 90px;
    width: 1600px;
    margin: 0 auto;
}

/* logo */
#logo{
    width: 200px;
}

/* 菜单 */
#menu{
    font-size: 40px;
    width: 1200px;
    margin: auto 0;
}

#menu ul{
    font-size: 40px;
    display: flex;
    justify-content: space-around;
}

#menu ul li a{
    font-size: 22px;
}

#menu .txt:hover{
    color: red;
}

.txt_ss {
    height: 25px;
    width: 150px;
}

.btn_Ss {
    width: 40px;
    height: 29px;
}

/* #menu .search{
    font-size: 20px;
    width: 50px;
}

#menu .search-box{
    width: 150px;
    height: 25px;
    margin-top: -5px;
} */

/* 登录，注册 */
#Sign-in{
    width: 200px;
    margin: auto 0;
}

#Sign-in ul{
    display: flex;
    justify-content: space-around;
}

#Sign-in ul li{
    font-size: 17px;
}

#Sign-in .txt:hover{
    color: red;
}

/*登录文字*/
#login{
    width:200px;
}

#login_info {
    margin-top: 15px;
    height: 50px;
    overflow: hidden;
}

#login a {
    text-decoration: none;
    margin-left: 10px;
    height: 50px;
    line-height: 50px;
}

#login_info .cl_name {
    margin-left: 10px;
    height: 50px;
    line-height: 50px;
}

#login_wz, #login_info .cl_name, pic_xia {
    float: left;
}

#login {
    margin-left: 140px;
    font-size: 15px;
    overflow: hidden;
}

    #login ul li {
        float: left;
        line-height: 75px;
    }

#login ul li.shu {
    color: #ccc;
}

        #login ul li a {
            text-decoration: none;
            color: black;
        }


/* 子菜单 */
#submenu{
    margin-top: 91px;
}

.submenu{
    border-bottom: 1px solid grey;
}

#submenu ul{
    width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
}

#submenu .txt:hover{
    color: red;
}

